Both have a great story and clever writing. A lot of classic episodes in the first 8 or so seasons. Still watch it to make sure I don't miss out anything. Episode 499 was one of the better ones in recent years.

Also, Bart the General (I think it's Episode 2) is underrated. Watch that again - a total Bart episode, dealing with real-world issues for kids (I was 8 when the show started), and in a total Simpsons way.

Another vote for Monorail, Scorpio (used to work with a guy we called Hank Scorpio because the resemblance was uncanny), the first...9 Halloween episodes (from The Raven to 3D Homer), and every damned line from the vegetarian episode.

Cecil Terwilliger: "Now make yourself at home. Perhaps a glass of Bordeaux? I have the '82 Chateau Latour and a rather indifferent Rausan-Segla."Sideshow Bob: "I've been in prison, Cecil. I'll be happy just as long as it doesn't taste like orange drink fermented under a radiator."Cecil Terwilliger: "That would be the Latour, then."

and

Sideshow Bob: "You do know I... used to have a... [clears throat] problem... with trying to kill people?"Cecil Terwilliger: "Goodness, I had no idea! For you see, I have been on Mars for the last decade, in a cave, with my eyes shut and my fingers in my ears."Sideshow Bob: "Touche, Cecil."

Homer: Hey! Are you like one of those English guards who can't laugh or smile or anything? [makes noises and faces at him][gets punched in the face] Ow!Marine: No, Sir! US Marine Corps, Sir!

/"Here in America we don't tolerate that kind of crap, Sir!"

I scrolled down the threat incredulous that no one had mentioned Bart vs. Australia, which is my favorite episode, too. There are SO many good moments, but the one scene that kills me the most every time is near the beginning when Bart doesn't believe Lisa about the hemispheres and starts calling all the different countries in the Southern Hemisphere.

"Please to repeat, and I will translate for El Presidente.""Which way does the water go in your toilet?""He says the tide is turning! The rebels will soon take the capital! We must flee! (jumps out window)"

Followed by, of course:Homer: "Burkino Faso? Disputed Zone? Who called all these weird places?"Homer's Brain: "Quiet, you fool, it might have been you."Homer: "No, I'm gonna ask Marge about this."Homer's Brain: "No! Why embarrass us both? Just write a check and I'll release some more endorphins."(writes check)Homer: "Ahhhhh..."

Bruno Dundridge: Ooh! Ah, that's it. I'm going to report this to me member of parliament.[yells out window]Bruno Dundridge: Hey, Gus! I got something to report to you.[Later, as Gus tends his swine]Gus: That's a bloody outrage, it is! I want to take this all the way to the Prime Minister.[they go down to a lake]Gus: Hey! Mr. Prime Minister! Andy!Prime Minister Andy: [floating naked on an inner tube with a beer] Eh, mates! What's the good word?

I'm going to report this to me member of Parliament. Hey, Gus! I've got something to report to ya. That's a bloody outrage, it is! I'm going to take this all the way to the Prime Minister. Mister Prime Minister! Andy! Aye mates, what's the good word?